package com.itheima.stringbuilder;

public class test01 {
    public static void main(String[] args) {
        StringBuilder sb = new StringBuilder();
        System.out.println(sb);

        StringBuilder sb2 = new StringBuilder("adc");
        System.out.println(sb2);
        String s = "dsdsd";
        StringBuilder sb3 = new StringBuilder(s);
        System.out.println(sb3);
    }
}
